drivers/scsi/hpsa_cmd.h

   1 /*
   2  *    Disk Array driver for HP Smart Array SAS controllers
   3  *    Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
   4  *
   5  *    This program is free software; you can redistribute it and/or modify
   6  *    it under the terms of the GNU General Public License as published by
   7  *    the Free Software Foundation; version 2 of the License.
   8  *
   9  *    This program is distributed in the hope that it will be useful,
  10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  12  *    NON INFRINGEMENT.  See the GNU General Public License for more details.
  13  *
  14  *    You should have received a copy of the GNU General Public License
  15  *    along with this program; if not, write to the Free Software
  16  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  *
  18  *    Questions/Comments/Bugfixes to iss_storagedev@hp.com
  19  *
  20  */
  21 #ifndef HPSA_CMD_H
  22 #define HPSA_CMD_H
  23
  24 /* general boundary defintions */
  25 #define SENSEINFOBYTES          32 /* may vary between hbas */
  26 #define SG_ENTRIES_IN_CMD       32 /* Max SG entries excluding chain blocks */
  27 #define HPSA_SG_CHAIN           0x80000000
  28 #define MAXREPLYQS              256
  29
  30 /* Command Status value */
  31 #define CMD_SUCCESS             0x0000
  32 #define CMD_TARGET_STATUS       0x0001
  33 #define CMD_DATA_UNDERRUN       0x0002
  34 #define CMD_DATA_OVERRUN        0x0003
  35 #define CMD_INVALID             0x0004
  36 #define CMD_PROTOCOL_ERR        0x0005
  37 #define CMD_HARDWARE_ERR        0x0006
  38 #define CMD_CONNECTION_LOST     0x0007
  39 #define CMD_ABORTED             0x0008
  40 #define CMD_ABORT_FAILED        0x0009
  41 #define CMD_UNSOLICITED_ABORT   0x000A
  42 #define CMD_TIMEOUT             0x000B
  43 #define CMD_UNABORTABLE         0x000C
  44
  45 /* Unit Attentions ASC's as defined for the MSA2012sa */
  46 #define POWER_OR_RESET                  0x29
  47 #define STATE_CHANGED                   0x2a
  48 #define UNIT_ATTENTION_CLEARED          0x2f
  49 #define LUN_FAILED                      0x3e
  50 #define REPORT_LUNS_CHANGED             0x3f
  51
  52 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
  53
  54         /* These ASCQ's defined for ASC = POWER_OR_RESET */
  55 #define POWER_ON_RESET                  0x00
  56 #define POWER_ON_REBOOT                 0x01
  57 #define SCSI_BUS_RESET                  0x02
  58 #define MSA_TARGET_RESET                0x03
  59 #define CONTROLLER_FAILOVER             0x04
  60 #define TRANSCEIVER_SE                  0x05
  61 #define TRANSCEIVER_LVD                 0x06
  62
  63         /* These ASCQ's defined for ASC = STATE_CHANGED */
  64 #define RESERVATION_PREEMPTED           0x03
  65 #define ASYM_ACCESS_CHANGED             0x06
  66 #define LUN_CAPACITY_CHANGED            0x09
  67
  68 /* transfer direction */
  69 #define XFER_NONE               0x00
  70 #define XFER_WRITE              0x01
  71 #define XFER_READ               0x02
  72 #define XFER_RSVD               0x03
  73
  74 /* task attribute */
  75 #define ATTR_UNTAGGED           0x00
  76 #define ATTR_SIMPLE             0x04
  77 #define ATTR_HEADOFQUEUE        0x05
  78 #define ATTR_ORDERED            0x06
  79 #define ATTR_ACA                0x07
  80
  81 /* cdb type */
  82 #define TYPE_CMD                                0x00
  83 #define TYPE_MSG                                0x01
  84
  85 /* Message Types  */
  86 #define HPSA_TASK_MANAGEMENT    0x00
  87 #define HPSA_RESET              0x01
  88 #define HPSA_SCAN               0x02
  89 #define HPSA_NOOP               0x03
  90
  91 #define HPSA_CTLR_RESET_TYPE    0x00
  92 #define HPSA_BUS_RESET_TYPE     0x01
  93 #define HPSA_TARGET_RESET_TYPE  0x03
  94 #define HPSA_LUN_RESET_TYPE     0x04
  95 #define HPSA_NEXUS_RESET_TYPE   0x05
  96
  97 /* Task Management Functions */
  98 #define HPSA_TMF_ABORT_TASK     0x00
  99 #define HPSA_TMF_ABORT_TASK_SET 0x01
 100 #define HPSA_TMF_CLEAR_ACA      0x02
 101 #define HPSA_TMF_CLEAR_TASK_SET 0x03
 102 #define HPSA_TMF_QUERY_TASK     0x04
 103 #define HPSA_TMF_QUERY_TASK_SET 0x05
 104 #define HPSA_TMF_QUERY_ASYNCEVENT 0x06
 105
 106
 107
 108 /* config space register offsets */
 109 #define CFG_VENDORID            0x00
 110 #define CFG_DEVICEID            0x02
 111 #define CFG_I2OBAR              0x10
 112 #define CFG_MEM1BAR             0x14
 113
 114 /* i2o space register offsets */
 115 #define I2O_IBDB_SET            0x20
 116 #define I2O_IBDB_CLEAR          0x70
 117 #define I2O_INT_STATUS          0x30
 118 #define I2O_INT_MASK            0x34
 119 #define I2O_IBPOST_Q            0x40
 120 #define I2O_OBPOST_Q            0x44
 121 #define I2O_DMA1_CFG            0x214
 122
 123 /* Configuration Table */
 124 #define CFGTBL_ChangeReq        0x00000001l
 125 #define CFGTBL_AccCmds          0x00000001l
 126 #define DOORBELL_CTLR_RESET     0x00000004l
 127 #define DOORBELL_CTLR_RESET2    0x00000020l
 128
 129 #define CFGTBL_Trans_Simple     0x00000002l
 130 #define CFGTBL_Trans_Performant 0x00000004l
 131 #define CFGTBL_Trans_use_short_tags 0x20000000l
 132 #define CFGTBL_Trans_enable_directed_msix (1 << 30)
 133
 134 #define CFGTBL_BusType_Ultra2   0x00000001l
 135 #define CFGTBL_BusType_Ultra3   0x00000002l
 136 #define CFGTBL_BusType_Fibre1G  0x00000100l
 137 #define CFGTBL_BusType_Fibre2G  0x00000200l
 138 struct vals32 {
 139         u32   lower;
 140         u32   upper;
 141 };
 142
 143 union u64bit {
 144         struct vals32 val32;
 145         u64 val;
 146 };
 147
 148 /* FIXME this is a per controller value (barf!) */
 149 #define HPSA_MAX_LUN 1024
 150 #define HPSA_MAX_PHYS_LUN 1024
 151 #define MAX_EXT_TARGETS 32
 152 #define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
 153         MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */
 154
 155 /* SCSI-3 Commands */
 156 #pragma pack(1)
 157
 158 #define HPSA_INQUIRY 0x12
 159 struct InquiryData {
 160         u8 data_byte[36];
 161 };
 162
 163 #define HPSA_REPORT_LOG 0xc2    /* Report Logical LUNs */
 164 #define HPSA_REPORT_PHYS 0xc3   /* Report Physical LUNs */
 165 struct ReportLUNdata {
 166         u8 LUNListLength[4];
 167         u32 reserved;
 168         u8 LUN[HPSA_MAX_LUN][8];
 169 };
 170
 171 struct ReportExtendedLUNdata {
 172         u8 LUNListLength[4];
 173         u8 extended_response_flag;
 174         u8 reserved[3];
 175         u8 LUN[HPSA_MAX_LUN][24];
 176 };
 177
 178 struct SenseSubsystem_info {
 179         u8 reserved[36];
 180         u8 portname[8];
 181         u8 reserved1[1108];
 182 };
 183
 184 /* BMIC commands */
 185 #define BMIC_READ 0x26
 186 #define BMIC_WRITE 0x27
 187 #define BMIC_CACHE_FLUSH 0xc2
 188 #define HPSA_CACHE_FLUSH 0x01   /* C2 was already being used by HPSA */
 189 #define BMIC_FLASH_FIRMWARE 0xF7
 190
 191 /* Command List Structure */
 192 union SCSI3Addr {
 193         struct {
 194                 u8 Dev;
 195                 u8 Bus:6;
 196                 u8 Mode:2;        /* b00 */
 197         } PeripDev;
 198         struct {
 199                 u8 DevLSB;
 200                 u8 DevMSB:6;
 201                 u8 Mode:2;        /* b01 */
 202         } LogDev;
 203         struct {
 204                 u8 Dev:5;
 205                 u8 Bus:3;
 206                 u8 Targ:6;
 207                 u8 Mode:2;        /* b10 */
 208         } LogUnit;
 209 };
 210
 211 struct PhysDevAddr {
 212         u32             TargetId:24;
 213         u32             Bus:6;
 214         u32             Mode:2;
 215         /* 2 level target device addr */
 216         union SCSI3Addr  Target[2];
 217 };
 218
 219 struct LogDevAddr {
 220         u32            VolId:30;
 221         u32            Mode:2;
 222         u8             reserved[4];
 223 };
 224
 225 union LUNAddr {
 226         u8               LunAddrBytes[8];
 227         union SCSI3Addr    SCSI3Lun[4];
 228         struct PhysDevAddr PhysDev;
 229         struct LogDevAddr  LogDev;
 230 };
 231
 232 struct CommandListHeader {
 233         u8              ReplyQueue;
 234         u8              SGList;
 235         u16             SGTotal;
 236         struct vals32     Tag;
 237         union LUNAddr     LUN;
 238 };
 239
 240 struct RequestBlock {
 241         u8   CDBLen;
 242         struct {
 243                 u8 Type:3;
 244                 u8 Attribute:3;
 245                 u8 Direction:2;
 246         } Type;
 247         u16  Timeout;
 248         u8   CDB[16];
 249 };
 250
 251 struct ErrDescriptor {
 252         struct vals32 Addr;
 253         u32  Len;
 254 };
 255
 256 struct SGDescriptor {
 257         struct vals32 Addr;
 258         u32  Len;
 259         u32  Ext;
 260 };
 261
 262 union MoreErrInfo {
 263         struct {
 264                 u8  Reserved[3];
 265                 u8  Type;
 266                 u32 ErrorInfo;
 267         } Common_Info;
 268         struct {
 269                 u8  Reserved[2];
 270                 u8  offense_size; /* size of offending entry */
 271                 u8  offense_num;  /* byte # of offense 0-base */
 272                 u32 offense_value;
 273         } Invalid_Cmd;
 274 };
 275 struct ErrorInfo {
 276         u8               ScsiStatus;
 277         u8               SenseLen;
 278         u16              CommandStatus;
 279         u32              ResidualCnt;
 280         union MoreErrInfo  MoreErrInfo;
 281         u8               SenseInfo[SENSEINFOBYTES];
 282 };
 283 /* Command types */
 284 #define CMD_IOCTL_PEND  0x01
 285 #define CMD_SCSI        0x03
 286
 287 #define DIRECT_LOOKUP_SHIFT 5
 288 #define DIRECT_LOOKUP_BIT 0x10
 289 #define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
 290
 291 #define HPSA_ERROR_BIT          0x02
 292 struct ctlr_info; /* defined in hpsa.h */
 293 /* The size of this structure needs to be divisible by 32
 294  * on all architectures because low 5 bits of the addresses
 295  * are used as follows:
 296  *
 297  * bit 0: to device, used to indicate "performant mode" command
 298  *        from device, indidcates error status.
 299  * bit 1-3: to device, indicates block fetch table entry for
 300  *          reducing DMA in fetching commands from host memory.
 301  * bit 4: used to indicate whether tag is "direct lookup" (index),
 302  *        or a bus address.
 303  */
 304
 305 struct CommandList {
 306         struct CommandListHeader Header;
 307         struct RequestBlock      Request;
 308         struct ErrDescriptor     ErrDesc;
 309         struct SGDescriptor      SG[SG_ENTRIES_IN_CMD];
 310         /* information associated with the command */
 311         u32                        busaddr; /* physical addr of this record */
 312         struct ErrorInfo *err_info; /* pointer to the allocated mem */
 313         struct ctlr_info           *h;
 314         int                        cmd_type;
 315         long                       cmdindex;
 316         struct list_head list;
 317         struct request *rq;
 318         struct completion *waiting;
 319         void   *scsi_cmd;
 320
 321 /* on 64 bit architectures, to get this to be 32-byte-aligned
 322  * it so happens we need PAD_64 bytes of padding, on 32 bit systems,
 323  * we need PAD_32 bytes of padding (see below).   This does that.
 324  * If it happens that 64 bit and 32 bit systems need different
 325  * padding, PAD_32 and PAD_64 can be set independently, and.
 326  * the code below will do the right thing.
 327  */
 328 #define IS_32_BIT ((8 - sizeof(long))/4)
 329 #define IS_64_BIT (!IS_32_BIT)
 330 #define PAD_32 (4)
 331 #define PAD_64 (4)
 332 #define COMMANDLIST_PAD (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
 333         u8 pad[COMMANDLIST_PAD];
 334 };
 335
 336 /* Configuration Table Structure */
 337 struct HostWrite {
 338         u32 TransportRequest;
 339         u32 Reserved;
 340         u32 CoalIntDelay;
 341         u32 CoalIntCount;
 342 };
 343
 344 #define SIMPLE_MODE     0x02
 345 #define PERFORMANT_MODE 0x04
 346 #define MEMQ_MODE       0x08
 347
 348 struct CfgTable {
 349         u8            Signature[4];
 350         u32             SpecValence;
 351         u32           TransportSupport;
 352         u32           TransportActive;
 353         struct          HostWrite HostWrite;
 354         u32           CmdsOutMax;
 355         u32           BusTypes;
 356         u32           TransMethodOffset;
 357         u8            ServerName[16];
 358         u32           HeartBeat;
 359         u32           SCSI_Prefetch;
 360         u32             MaxScatterGatherElements;
 361         u32             MaxLogicalUnits;
 362         u32             MaxPhysicalDevices;
 363         u32             MaxPhysicalDrivesPerLogicalUnit;
 364         u32             MaxPerformantModeCommands;
 365         u32             MaxBlockFetch;
 366         u32             PowerConservationSupport;
 367         u32             PowerConservationEnable;
 368         u32             TMFSupportFlags;
 369         u8              TMFTagMask[8];
 370         u8              reserved[0x78 - 0x70];
 371         u32             misc_fw_support; /* offset 0x78 */
 372 #define                 MISC_FW_DOORBELL_RESET (0x02)
 373 #define                 MISC_FW_DOORBELL_RESET2 (0x010)
 374         u8              driver_version[32];
 375
 376 };
 377
 378 #define NUM_BLOCKFETCH_ENTRIES 8
 379 struct TransTable_struct {
 380         u32            BlockFetch[NUM_BLOCKFETCH_ENTRIES];
 381         u32            RepQSize;
 382         u32            RepQCount;
 383         u32            RepQCtrAddrLow32;
 384         u32            RepQCtrAddrHigh32;
 385 #define MAX_REPLY_QUEUES 8
 386         struct vals32  RepQAddr[MAX_REPLY_QUEUES];
 387 };
 388
 389 struct hpsa_pci_info {
 390         unsigned char   bus;
 391         unsigned char   dev_fn;
 392         unsigned short  domain;
 393         u32             board_id;
 394 };
 395
 396 #pragma pack()
 397 #endif /* HPSA_CMD_H */